Marking-brush



PATENTED FEB. 1904. v

' J. LA BURT-6P1). MOM. P. CAMPBELL.

MARKING BRUSH APPLICATION FILED MAR. 19. 1903.

H0 MODEL;

. WITNESSES:

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UNITED STATES Patented February is, 1904.

PATENT ()FFICE.

JOHN LA BURT AND DAVID MoMUN PAUL CAMPBELL, OF NEW YORK, N. Y.; SAID LA BURT ASSIGNOR TO HIMSELF, AND CARL D. BRADLEY AND' ALBERT L ELIEL, OF PARLIN, NEW JERSEY.

MARKING-BRUSH.

SPECIFICATION forming part of Letters Patent No. 752,078, datedFebruary 16, 1904.

Application filed March 19, 1903.

To all whom, it may concern.-

Be it known that we, JOHN LA BURT and DAVID MoMUN PAUL CAMPBELL, of New York,

' Kings county, New York, have invented cer- 5 tain new anduseful Improvements in Marking-Brushes, of which the following is a full,

. clear, and exact description.

This invention is designed to provide a brush for marking, and particularly one for use by IO shipping clerks and markers in marking wooden and paper packages such as are handled byexpressmen, &c., and one that is designed to supply a continuous supply of ink when the brush is in use and which can be shut I 5 off when the marking is finished.

Another object of our invention is to provide a brush that can be adjusted as to the length of the bristle exposed, so that a wide or narrow mark can be made, and this adjust- 2o ability will also provide for feeding the brush forward as it becomes worn.

Another object of our invention is to provide an air-inlet to the reservoir that will admit air beneath the surface of the ink in the 25 reservoir at the same time that the feed from the reservoir to the brush is open. The air is admitted beneath the surface of the ink to overcome the excess flow that is caused by the admission of air into the top. The air is only admitted in a small quantity, and the ink is not under pressure on its entire surface. The airinlet is also designed to prevent the frothing at the brush which is the case when the air must force itself through the brush to the res- 3 ervoir.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar figures of reference refer to similar parts throughout the several views.

Figure 1 is a central section. Fig. 2 is a section on the line 2 2 in Fig. 1, and Fig. 3 is a perspective of a brush with a modified hold ing means.

In the drawings, is a casing forming a reservoir which can be capped on the outlet end by means of a cap 11, which has a reduced tubular portion 12, in which is a perforation 13. In this tubular portion 12 is ar- Serial No. 148,577. (No model.)

Perforations 18 can be placed in-the thimble 15, so that the ink that flows inside of this thimble can find its way outside to the brush.

Extending down through the reservoir is a tube 19, which has secured on the end thereof a flange 20, which can be faced with a washer 21, this flange and the washer forming a closure for the tubular portion 12 by coming in contact with a shoulder on the upper edge of the tubular portion, as shown. The upper end of the tube 19 is threaded and fits into the threaded portion 10 and is operated by any suitable thumb-piece 22 and is provided with a perforation or perforations 23 or any other means for admitting air, so that when the thumb-piece 22 is turned the threaded portion of the tube 19 turns in the bearing 10 and screws up so as to admit air through the perforation23, this air passing down the tube 19 and coming in under the surface of the ink, as by this turning the flange and Washer 21 have also been lifted away from the shoulder formed on top of the tubular portion 12 and admit ink from the reservoir 10 into this tubular portion 12, whence it flows around and through the'lorush 14 to the end thereof and the brush is saturated for writing.

When the brush has been used and it is desired to stop for any length of time, by again screwing down tube 19 by means of the thumbscrew 22 the air-inlet 23 is closed, and likewise the opening from the reservoir 10 to the tubular portion 12.

In Fig. 3 we show a modified form of brush in which the thimble 15 has its upper portion slitted, and the tongues so formed are bent over to form the spring-tongues 15, which are adapted to bear against the inner sides of the tubular portion 12. In this way it will be seen that the brush can be used as a short brush to give an even line or can be pulled out farther to allow shading therewith.

We may provide a tube 19 at a suitable point equidistant between the ends of the casing 10 with a perforated washer 19, so as to relieve it of any strain, inasmuch as this washer 19 is designed to bear or nearly bear against the sides of the reservoir.

It will be evident that we have devised a marking-brush in which the air-inlet and inkfeed are operated simultaneously, opening and closing together, one in which the air is admitted below the surface of the ink to provide a free flow, and-one in which the brush canbe lengthened or shortened, as desired.

flaving thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. A marking-brush comprising a casing forming a reservoir, an outlet portion on one end of the reservoir, a brush arranged in said outlet portion, means for closing the receiv-. ing end of the outlet portion, means for admitting air to the reservoir below the surface of the ink, and means for closing or opening the ink-outlet and air-inlet simultaneously.

2. A marking-brush comprising a casing forming a reservoir, an outlet portion on the end of the reservoir, a brush arranged in the said outlet portion, a Valve adapted to close the receiving end of the outlet portion, a tube passing through said valve and adapted to actuate it, the other end of the said tube emerging from the casing on the opposed end, an air-inlet near the projecting end of the tube, and means whereby the ink-outlet and air-inlet can be operated simultaneously.

3. A marking-brush comprising a casing forming a reservoir, an outlet portion on one end thereof, a brush arranged in said outlet portion, a valve adapted to close the receiving end of the outlet portion, a tube actuating and passing through said valve, the other end of. said tube emerging from the opposed end of the reservoir, and arranged to be partially withdrawn from the reservoir, and an air-inlet in the said tube near its projecting end, said air-inlet being adapted to be opened by the partial withdrawal of the tube, said withdrawal also operating to open the receiving end of the outlet portion.

4. A marking-brush comprising a reservoir, an outlet portion on one end thereof, means for closing the receiving end of the outlet portion, means for admitting air to the reservoir beneath the surface of the ink, a closure for the air-inlet, and means operating to open and close the air-inlet and ink-outlet simultaneously.

In testimony whereof we have signed this specification in thepresence of two subscribing witnesses.

JOHN LA BURT. DAVID MCMUN PAUL CAMPBELL.

Witnesses:

J. G. DUNBAR, WM. H. CAMFIELD. 

